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Quadratic Formula ComponentsVisual breakdown of the quadratic formula showing each component and its meaningThe Quadratic Formulax = -b ± √b² - 4ac2aOpposite of bThe Discriminantb² - 4acDivide by twice the leading coefficientMemory Tip"Negative b, plus orminus the square root..."± gives two answersOne with +, one with -

The Quadratic Formula

Lesson Grade 9, 10, 11

Students learn the quadratic formula, understand its derivation from completing the square, and apply it to solve quadratic equations. Includes guidance on when to use the formula versus other methods, interpretation of the discriminant, and real-world applications.

HSA-REI.B.4 HSA-REI.B.4a HSA-REI.B.4b
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